Dome Fire Reaches 6,632 Acres in Yosemite, 40% Contained as of Oct. 3
The Dome Fire has burned 6,632 acres in Yosemite National Park and is 40% contained as of Oct. 3, with 765 personnel assigned; Glacier Point Road stays closed.
CA
In 2025, fire departments serving Rio Vista responded to 59 fire and hazmat incidents — from cooking fires to gas leaks to a single $2.0M building blaze. Here's the full picture.
Incomplete 2025 data. Rio Vista's departments reported 59 incidents to NFIRS for 2025, against about 108 in a typical year, so 2025 figures on this page undercount. The 2021–2025 totals are the better guide.
Grass fire lead by count. Building fires lead by dollars. Together the top five categories make up about 63% of all calls.
Aug peaks. Dec dips. Watch for the typical fall climb starting in October.
540 incidents 2021–2025. Peak year was 2022. $5.3M cumulative property loss.
| Year | Incidents | YoY | |
|---|---|---|---|
| 2021 | 124 | — | |
| 2022 | 162 | +30.6% | |
| 2023 | 92 | -43.2% | |
| 2024 | 103 | +12.0% | |
| 2025* | 59 | — |
* Well below Rio Vista's usual volume. That almost always means one or more departments didn't submit a full year to NFIRS, not that fires dropped, so no year-over-year change is shown for it.
For the 4 building fires Rio Vista departments responded to in 2025, here's how they were classified once investigators were finished.
NFIRS Area of Origin (AREA_ORIG) for the 240 building fires investigators classified across 2021–2025. The room or location where ignition occurred — kitchens, bedrooms, exterior, vehicle areas — tells you where to focus prevention.
| # | Area of origin | Count | Share | |
|---|---|---|---|---|
| 1 | Highway, parking lot, street: on or near | 56 | 23.3% | |
| 2 | Undetermined | 32 | 13.3% | |
| 3 | Open area - outside; included are farmland, field | 31 | 12.9% | |
| 4 | Outside area, other | 15 | 6.2% | |
| 5 | Wildland, woods | 15 | 6.2% | |
| 6 | Engine area, running gear, wheel area | 13 | 5.4% | |
| 7 | Other | 9 | 3.8% | |
| 8 | Courtyard, patio, porch, terrace | 9 | 3.8% | |
| 9 | Vehicle area, other | 6 | 2.5% | |
| 10 | Cooking area, kitchen | 5 | 2.1% | |
| 11 | All other areas | 49 | 20.4% |
NFIRS Heat Source (HEAT_SOURC) — the physical thing that started it. Spark or ember from operating equipment, an open flame, smoking materials, or hot embers from a fireplace are the leading culprits nationwide. Here's the Rio Vista mix.
| # | Heat source | Count | Share | |
|---|---|---|---|---|
| 1 | Undetermined | 141 | 58.8% | |
| 2 | Hot ember or ash | 20 | 8.3% | |
| 3 | Spark, ember or flame from operating equipment | 12 | 5.0% | |
| 4 | Arcing | 7 | 2.9% | |
| 5 | Heat from direct flame, convection currents | 7 | 2.9% | |
| 6 | Heat from powered equipment, other | 6 | 2.5% | |
| 7 | Radiated, conducted heat from operating equipment | 6 | 2.5% | |
| 8 | Hot or smoldering object, other | 5 | 2.1% | |
| 9 | Heat, spark from friction | 4 | 1.7% | |
| 10 | Fireworks | 4 | 1.7% | |
| 11 | All other sources | 28 | 11.7% |
Largest single-incident property losses reported by Rio Vista departments in 2025. These 6 fires alone account for 100% of the city's annual total.
| # | Property loss | Type | Severity | Status |
|---|---|---|---|---|
| 1 | $2,000,000 | Fires in structures other than in a building | Major | Investigated |
| 2 | $75,000 | Fire in motor home, camper, recreational vehicle | Significant | Investigated |
| 3 | $50,000 | Building fires | Significant | Investigated |
| 4 | $2,000 | Building fires | Significant | Investigated |
| 5 | $600 | Fuel burner/boiler malfunction, fire confined | Significant | Investigated |
| 6 | $500 | Cultivated grain or crop fire | Significant | Investigated |
Per-capita rates let us compare apples to apples. Rio Vista sits below the national average for incidents per resident.
6 fire-related casualties recorded in NFIRS Module 11 across the 2021–2025 window. Age, gender, and severity are coarse-binned — no individual identification possible.
| Age | Count | |
|---|---|---|
| 0-9 | 0 | |
| 10-19 | 1 | |
| 20-29 | 2 | |
| 30-39 | 2 | |
| 40-49 | 1 | |
| 50-59 | 0 | |
| 60-69 | 0 | |
| 70-79 | 0 | |
| 80+ | 0 |
Top 25 wildfires (1992+) in the FPA-FOD ignitions database, scaled by acres. 528,566 acres burned in this 50-mile radius. Each dot is a fire — bigger dots burned more land.
| Year | Cause | Acres | Distance | |
|---|---|---|---|---|
| 2020 | Natural | 305,651 | 41.2 mi | |
| 2017 | Missing data/not specified/undetermined | 56,556 | 44.6 mi | |
| 2017 | Missing data/not specified/undetermined | 51,624 | 32.9 mi | |
| 2009 | Missing data/not specified/undetermined | 12,200 | 38.7 mi | |
| 2018 | Equipment and vehicle use | 11,789 | 42.0 mi | |
| 1996 | Arson/incendiarism | 9,820 | 41.3 mi | |
| 2015 | Equipment and vehicle use | 8,051 | 31.8 mi | |
| 2003 | Equipment and vehicle use | 6,804 | 43.6 mi | |
| 2005 | Arson/incendiarism | 6,744 | 36.1 mi | |
| 2014 | Fireworks | 6,488 | 31.8 mi | |
| 2008 | Missing data/not specified/undetermined | 6,400 | 32.7 mi | |
| 2000 | Equipment and vehicle use | 5,731 | 38.8 mi |
Top 5 ZIP codes by NFIRS incident count across 2021–2025. Each ZIP has its own fire profile — dive in for neighborhood-level context.
Six California cities with population within ±25% of Rio Vista. Useful comparison targets — same state, similar size, different fire profile.
A 30-minute weekend can cut your home's exposure substantially. These four checklists are a good starting point.
Numbers reflect incidents reported by participating fire departments to the National Fire Incident Reporting System (NFIRS) Public Data Release for calendar year 2025. NFIRS is voluntary — about 23,000 of roughly 30,000 US fire departments report — so totals are a strong indicator, not a complete census. Per-capita comparisons use 2023 ACS population estimates. Wildland fire data complements NFIRS with NIFC and USFS perimeters. Active-fire counts come from a dated NIFC snapshot, not a live feed.